./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.5.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.5.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ef848a0bb4e4fe8fcbf3149eed3ae84563dc7162b88d3d2e0e92e77cc1d88695 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:17:47,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:17:47,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:17:47,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:17:47,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:17:47,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:17:47,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:17:47,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:17:47,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:17:47,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:17:47,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:17:47,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:17:47,265 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:17:47,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:17:47,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:17:47,268 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:17:47,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:17:47,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:17:47,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:17:47,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:17:47,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:17:47,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:17:47,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:17:47,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:17:47,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:17:47,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:17:47,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:17:47,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:17:47,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:17:47,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:17:47,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:17:47,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:17:47,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:17:47,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:17:47,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:17:47,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:17:47,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:17:47,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:17:47,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:17:47,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:17:47,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:17:47,328 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 22:17:47,381 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:17:47,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:17:47,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:17:47,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:17:47,383 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:17:47,383 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:17:47,383 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:17:47,383 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:17:47,384 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:17:47,384 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:17:47,385 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:17:47,385 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:17:47,385 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:17:47,385 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:17:47,385 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:17:47,386 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:17:47,386 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:17:47,386 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:17:47,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:17:47,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:17:47,387 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:17:47,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:17:47,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:17:47,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:17:47,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:17:47,388 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:17:47,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:17:47,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:17:47,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:17:47,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:17:47,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:17:47,390 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:17:47,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:17:47,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:17:47,391 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:17:47,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:17:47,392 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:17:47,392 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:17:47,392 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef848a0bb4e4fe8fcbf3149eed3ae84563dc7162b88d3d2e0e92e77cc1d88695 [2022-11-25 22:17:47,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:17:47,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:17:47,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:17:47,736 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:17:47,736 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:17:47,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.5.prop1-func-interl.c [2022-11-25 22:17:50,828 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:17:51,297 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:17:51,299 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.5.prop1-func-interl.c [2022-11-25 22:17:51,321 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/data/e67225a03/d3eee9ea8b42423fa4fd29316d1e1618/FLAGcb22e5f6d [2022-11-25 22:17:51,343 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/data/e67225a03/d3eee9ea8b42423fa4fd29316d1e1618 [2022-11-25 22:17:51,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:17:51,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:17:51,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:17:51,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:17:51,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:17:51,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:17:51" (1/1) ... [2022-11-25 22:17:51,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a2ecbb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:51, skipping insertion in model container [2022-11-25 22:17:51,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:17:51" (1/1) ... [2022-11-25 22:17:51,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:17:51,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:17:51,692 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.5.prop1-func-interl.c[1014,1027] [2022-11-25 22:17:52,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:17:52,170 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:17:52,181 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.5.prop1-func-interl.c[1014,1027] [2022-11-25 22:17:52,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:17:52,403 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:17:52,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:52 WrapperNode [2022-11-25 22:17:52,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:17:52,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:17:52,406 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:17:52,406 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:17:52,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:52" (1/1) ... [2022-11-25 22:17:52,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:52" (1/1) ... [2022-11-25 22:17:52,628 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2558 [2022-11-25 22:17:52,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:17:52,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:17:52,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:17:52,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:17:52,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:52" (1/1) ... [2022-11-25 22:17:52,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:52" (1/1) ... [2022-11-25 22:17:52,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:52" (1/1) ... [2022-11-25 22:17:52,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:52" (1/1) ... [2022-11-25 22:17:52,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:52" (1/1) ... [2022-11-25 22:17:52,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:52" (1/1) ... [2022-11-25 22:17:52,818 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:52" (1/1) ... [2022-11-25 22:17:52,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:52" (1/1) ... [2022-11-25 22:17:52,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:17:52,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:17:52,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:17:52,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:17:52,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:52" (1/1) ... [2022-11-25 22:17:52,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:17:52,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:17:52,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:17:52,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:17:52,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:17:52,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:17:53,589 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:17:53,591 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:31:48,946 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:31:49,003 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:31:49,004 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 22:31:49,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:31:49 BoogieIcfgContainer [2022-11-25 22:31:49,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:31:49,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:31:49,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:31:49,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:31:49,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:17:51" (1/3) ... [2022-11-25 22:31:49,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1c1c6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:31:49, skipping insertion in model container [2022-11-25 22:31:49,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:52" (2/3) ... [2022-11-25 22:31:49,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1c1c6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:31:49, skipping insertion in model container [2022-11-25 22:31:49,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:31:49" (3/3) ... [2022-11-25 22:31:49,030 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.5.prop1-func-interl.c [2022-11-25 22:31:49,063 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:31:49,064 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:31:49,126 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:31:49,135 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@74f81935, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:31:49,136 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:31:49,140 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:31:49,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 22:31:49,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:31:49,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 22:31:49,148 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:31:49,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:31:49,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-25 22:31:49,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:31:49,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950288406] [2022-11-25 22:31:49,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:31:49,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:31:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:31:49,617 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:31:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:31:49,857 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:31:49,860 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:31:49,861 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 22:31:49,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:31:49,869 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 22:31:49,873 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:31:49,918 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-25 22:31:49,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:31:49 BoogieIcfgContainer [2022-11-25 22:31:49,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:31:49,944 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:31:49,944 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:31:49,945 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:31:49,946 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:31:49" (3/4) ... [2022-11-25 22:31:49,949 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 22:31:49,949 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:31:49,951 INFO L158 Benchmark]: Toolchain (without parser) took 838602.90ms. Allocated memory was 174.1MB in the beginning and 992.0MB in the end (delta: 817.9MB). Free memory was 140.3MB in the beginning and 584.0MB in the end (delta: -443.7MB). Peak memory consumption was 376.1MB. Max. memory is 16.1GB. [2022-11-25 22:31:49,951 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 121.6MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:31:49,952 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1053.43ms. Allocated memory is still 174.1MB. Free memory was 140.3MB in the beginning and 108.0MB in the end (delta: 32.4MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2022-11-25 22:31:49,953 INFO L158 Benchmark]: Boogie Procedure Inliner took 280.11ms. Allocated memory is still 174.1MB. Free memory was 108.0MB in the beginning and 114.8MB in the end (delta: -6.9MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. [2022-11-25 22:31:49,954 INFO L158 Benchmark]: Boogie Preprocessor took 183.38ms. Allocated memory is still 174.1MB. Free memory was 114.8MB in the beginning and 99.4MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 22:31:49,959 INFO L158 Benchmark]: RCFGBuilder took 836134.65ms. Allocated memory was 174.1MB in the beginning and 992.0MB in the end (delta: 817.9MB). Free memory was 99.4MB in the beginning and 643.8MB in the end (delta: -544.4MB). Peak memory consumption was 601.2MB. Max. memory is 16.1GB. [2022-11-25 22:31:49,960 INFO L158 Benchmark]: TraceAbstraction took 934.37ms. Allocated memory is still 992.0MB. Free memory was 642.7MB in the beginning and 585.0MB in the end (delta: 57.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2022-11-25 22:31:49,961 INFO L158 Benchmark]: Witness Printer took 5.31ms. Allocated memory is still 992.0MB. Free memory was 585.0MB in the beginning and 584.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:31:49,969 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 121.6MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1053.43ms. Allocated memory is still 174.1MB. Free memory was 140.3MB in the beginning and 108.0MB in the end (delta: 32.4MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 280.11ms. Allocated memory is still 174.1MB. Free memory was 108.0MB in the beginning and 114.8MB in the end (delta: -6.9MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 183.38ms. Allocated memory is still 174.1MB. Free memory was 114.8MB in the beginning and 99.4MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * RCFGBuilder took 836134.65ms. Allocated memory was 174.1MB in the beginning and 992.0MB in the end (delta: 817.9MB). Free memory was 99.4MB in the beginning and 643.8MB in the end (delta: -544.4MB). Peak memory consumption was 601.2MB. Max. memory is 16.1GB. * TraceAbstraction took 934.37ms. Allocated memory is still 992.0MB. Free memory was 642.7MB in the beginning and 585.0MB in the end (delta: 57.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Witness Printer took 5.31ms. Allocated memory is still 992.0MB. Free memory was 585.0MB in the beginning and 584.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 280, overapproximation of bitwiseAnd at line 208. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_28 = 0; [L39] const SORT_4 var_81 = 1; [L40] const SORT_4 var_82 = 0; [L41] const SORT_2 var_95 = 1; [L42] const SORT_3 var_97 = 0; [L43] const SORT_4 var_100 = 5; [L44] const SORT_2 var_110 = 0; [L45] const SORT_4 var_203 = 2; [L46] const SORT_4 var_235 = 3; [L47] const SORT_4 var_267 = 4; [L48] const SORT_2 var_446 = 4; [L49] const SORT_2 var_456 = 2; [L50] const SORT_2 var_458 = 3; [L52] SORT_1 input_96; [L53] SORT_1 input_104; [L54] SORT_1 input_111; [L55] SORT_1 input_117; [L56] SORT_1 input_123; [L57] SORT_1 input_129; [L58] SORT_1 input_135; [L59] SORT_1 input_141; [L60] SORT_1 input_147; [L61] SORT_1 input_153; [L62] SORT_1 input_299; [L63] SORT_1 input_303; [L64] SORT_1 input_306; [L65] SORT_1 input_307; [L66] SORT_1 input_308; [L67] SORT_1 input_309; [L68] SORT_1 input_310; [L69] SORT_1 input_311; [L70] SORT_1 input_312; [L71] SORT_1 input_313; [L72] SORT_1 input_325; [L73] SORT_1 input_331; [L74] SORT_1 input_337; [L75] SORT_1 input_343; [L76] SORT_1 input_349; [L77] SORT_1 input_364; [L78] SORT_1 input_382; [L79] SORT_1 input_400; [L80] SORT_1 input_418; [L81] SORT_1 input_436; [L83] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L84] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L85] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L86] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L87] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L88] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L89] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L90] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L91] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L92] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L93] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L94] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L95] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L96] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L97] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L98] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L99] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L100] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L101] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L102] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L103] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L104] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L105] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L106] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L107] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L108] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L109] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L110] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L111] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L112] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L113] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L114] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L115] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L116] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L117] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L118] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] SORT_2 init_7_arg_1 = var_5; [L122] state_6 = init_7_arg_1 [L123] SORT_2 init_9_arg_1 = var_5; [L124] state_8 = init_9_arg_1 [L125] SORT_2 init_11_arg_1 = var_5; [L126] state_10 = init_11_arg_1 [L127] SORT_2 init_13_arg_1 = var_5; [L128] state_12 = init_13_arg_1 [L129] SORT_2 init_15_arg_1 = var_5; [L130] state_14 = init_15_arg_1 [L131] SORT_2 init_17_arg_1 = var_5; [L132] state_16 = init_17_arg_1 [L133] SORT_2 init_19_arg_1 = var_5; [L134] state_18 = init_19_arg_1 [L135] SORT_2 init_21_arg_1 = var_5; [L136] state_20 = init_21_arg_1 [L137] SORT_2 init_23_arg_1 = var_5; [L138] state_22 = init_23_arg_1 [L139] SORT_2 init_25_arg_1 = var_5; [L140] state_24 = init_25_arg_1 [L141] SORT_2 init_27_arg_1 = var_5; [L142] state_26 = init_27_arg_1 [L143] SORT_1 init_30_arg_1 = var_28; [L144] state_29 = init_30_arg_1 [L145] SORT_1 init_32_arg_1 = var_28; [L146] state_31 = init_32_arg_1 [L147] SORT_1 init_34_arg_1 = var_28; [L148] state_33 = init_34_arg_1 [L149] SORT_1 init_36_arg_1 = var_28; [L150] state_35 = init_36_arg_1 [L151] SORT_1 init_38_arg_1 = var_28; [L152] state_37 = init_38_arg_1 [L153] SORT_1 init_40_arg_1 = var_28; [L154] state_39 = init_40_arg_1 [L155] SORT_1 init_42_arg_1 = var_28; [L156] state_41 = init_42_arg_1 [L157] SORT_1 init_44_arg_1 = var_28; [L158] state_43 = init_44_arg_1 [L159] SORT_1 init_46_arg_1 = var_28; [L160] state_45 = init_46_arg_1 [L161] SORT_1 init_48_arg_1 = var_28; [L162] state_47 = init_48_arg_1 [L163] SORT_1 init_50_arg_1 = var_28; [L164] state_49 = init_50_arg_1 [L165] SORT_1 init_52_arg_1 = var_28; [L166] state_51 = init_52_arg_1 [L167] SORT_1 init_54_arg_1 = var_28; [L168] state_53 = init_54_arg_1 [L169] SORT_1 init_56_arg_1 = var_28; [L170] state_55 = init_56_arg_1 [L171] SORT_1 init_58_arg_1 = var_28; [L172] state_57 = init_58_arg_1 [L173] SORT_1 init_60_arg_1 = var_28; [L174] state_59 = init_60_arg_1 [L175] SORT_1 init_62_arg_1 = var_28; [L176] state_61 = init_62_arg_1 [L177] SORT_1 init_64_arg_1 = var_28; [L178] state_63 = init_64_arg_1 [L179] SORT_1 init_66_arg_1 = var_28; [L180] state_65 = init_66_arg_1 [L181] SORT_1 init_68_arg_1 = var_28; [L182] state_67 = init_68_arg_1 [L183] SORT_1 init_70_arg_1 = var_28; [L184] state_69 = init_70_arg_1 [L185] SORT_1 init_72_arg_1 = var_28; [L186] state_71 = init_72_arg_1 [L187] SORT_1 init_74_arg_1 = var_28; [L188] state_73 = init_74_arg_1 [L189] SORT_1 init_76_arg_1 = var_28; [L190] state_75 = init_76_arg_1 [L191] SORT_1 init_78_arg_1 = var_28; [L192] state_77 = init_78_arg_1 [L193] SORT_1 init_80_arg_1 = var_28; [L194] state_79 = init_80_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, var_100=5, var_110=0, var_203=2, var_235=3, var_267=4, var_28=0, var_446=4, var_456=2, var_458=3, var_5=0, var_81=1, var_82=0, var_95=1, var_97=0] [L197] input_96 = __VERIFIER_nondet_uchar() [L198] input_104 = __VERIFIER_nondet_uchar() [L199] input_111 = __VERIFIER_nondet_uchar() [L200] input_117 = __VERIFIER_nondet_uchar() [L201] input_123 = __VERIFIER_nondet_uchar() [L202] input_129 = __VERIFIER_nondet_uchar() [L203] input_135 = __VERIFIER_nondet_uchar() [L204] input_141 = __VERIFIER_nondet_uchar() [L205] input_147 = __VERIFIER_nondet_uchar() [L206] input_153 = __VERIFIER_nondet_uchar() [L207] input_299 = __VERIFIER_nondet_uchar() [L208] input_299 = input_299 & mask_SORT_1 [L209] input_303 = __VERIFIER_nondet_uchar() [L210] input_303 = input_303 & mask_SORT_1 [L211] input_306 = __VERIFIER_nondet_uchar() [L212] input_306 = input_306 & mask_SORT_1 [L213] input_307 = __VERIFIER_nondet_uchar() [L214] input_307 = input_307 & mask_SORT_1 [L215] input_308 = __VERIFIER_nondet_uchar() [L216] input_308 = input_308 & mask_SORT_1 [L217] input_309 = __VERIFIER_nondet_uchar() [L218] input_309 = input_309 & mask_SORT_1 [L219] input_310 = __VERIFIER_nondet_uchar() [L220] input_310 = input_310 & mask_SORT_1 [L221] input_311 = __VERIFIER_nondet_uchar() [L222] input_311 = input_311 & mask_SORT_1 [L223] input_312 = __VERIFIER_nondet_uchar() [L224] input_312 = input_312 & mask_SORT_1 [L225] input_313 = __VERIFIER_nondet_uchar() [L226] input_313 = input_313 & mask_SORT_1 [L227] input_325 = __VERIFIER_nondet_uchar() [L228] input_325 = input_325 & mask_SORT_1 [L229] input_331 = __VERIFIER_nondet_uchar() [L230] input_331 = input_331 & mask_SORT_1 [L231] input_337 = __VERIFIER_nondet_uchar() [L232] input_337 = input_337 & mask_SORT_1 [L233] input_343 = __VERIFIER_nondet_uchar() [L234] input_343 = input_343 & mask_SORT_1 [L235] input_349 = __VERIFIER_nondet_uchar() [L236] input_349 = input_349 & mask_SORT_1 [L237] input_364 = __VERIFIER_nondet_uchar() [L238] input_382 = __VERIFIER_nondet_uchar() [L239] input_400 = __VERIFIER_nondet_uchar() [L240] input_418 = __VERIFIER_nondet_uchar() [L241] input_436 = __VERIFIER_nondet_uchar() [L244] SORT_1 var_83_arg_0 = state_37; [L245] SORT_4 var_83_arg_1 = var_81; [L246] SORT_4 var_83_arg_2 = var_82; [L247] SORT_4 var_83 = var_83_arg_0 ? var_83_arg_1 : var_83_arg_2; [L248] SORT_1 var_84_arg_0 = state_47; [L249] SORT_4 var_84_arg_1 = var_81; [L250] SORT_4 var_84_arg_2 = var_82; [L251] SORT_4 var_84 = var_84_arg_0 ? var_84_arg_1 : var_84_arg_2; [L252] SORT_4 var_85_arg_0 = var_83; [L253] SORT_4 var_85_arg_1 = var_84; [L254] SORT_4 var_85 = var_85_arg_0 + var_85_arg_1; [L255] SORT_1 var_86_arg_0 = state_57; [L256] SORT_4 var_86_arg_1 = var_81; [L257] SORT_4 var_86_arg_2 = var_82; [L258] SORT_4 var_86 = var_86_arg_0 ? var_86_arg_1 : var_86_arg_2; [L259] SORT_4 var_87_arg_0 = var_85; [L260] SORT_4 var_87_arg_1 = var_86; [L261] SORT_4 var_87 = var_87_arg_0 + var_87_arg_1; [L262] SORT_1 var_88_arg_0 = state_67; [L263] SORT_4 var_88_arg_1 = var_81; [L264] SORT_4 var_88_arg_2 = var_82; [L265] SORT_4 var_88 = var_88_arg_0 ? var_88_arg_1 : var_88_arg_2; [L266] SORT_4 var_89_arg_0 = var_87; [L267] SORT_4 var_89_arg_1 = var_88; [L268] SORT_4 var_89 = var_89_arg_0 + var_89_arg_1; [L269] SORT_1 var_90_arg_0 = state_77; [L270] SORT_4 var_90_arg_1 = var_81; [L271] SORT_4 var_90_arg_2 = var_82; [L272] SORT_4 var_90 = var_90_arg_0 ? var_90_arg_1 : var_90_arg_2; [L273] SORT_4 var_91_arg_0 = var_89; [L274] SORT_4 var_91_arg_1 = var_90; [L275] SORT_4 var_91 = var_91_arg_0 + var_91_arg_1; [L276] var_91 = var_91 & mask_SORT_4 [L277] SORT_4 var_92_arg_0 = var_91; [L278] SORT_4 var_92_arg_1 = var_81; [L279] SORT_1 var_92 = var_92_arg_0 <= var_92_arg_1; [L280] SORT_1 var_93_arg_0 = ~state_79; [L281] var_93_arg_0 = var_93_arg_0 & mask_SORT_1 [L282] SORT_1 var_93_arg_1 = ~var_92; [L283] var_93_arg_1 = var_93_arg_1 & mask_SORT_1 [L284] SORT_1 var_93 = var_93_arg_0 & var_93_arg_1; [L285] var_93 = var_93 & mask_SORT_1 [L286] SORT_1 bad_94_arg_0 = var_93; [L287] CALL __VERIFIER_assert(!(bad_94_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 22:31:50,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.5.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ef848a0bb4e4fe8fcbf3149eed3ae84563dc7162b88d3d2e0e92e77cc1d88695 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:31:52,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:31:52,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:31:52,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:31:52,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:31:52,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:31:52,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:31:52,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:31:52,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:31:52,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:31:52,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:31:52,580 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:31:52,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:31:52,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:31:52,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:31:52,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:31:52,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:31:52,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:31:52,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:31:52,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:31:52,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:31:52,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:31:52,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:31:52,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:31:52,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:31:52,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:31:52,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:31:52,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:31:52,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:31:52,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:31:52,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:31:52,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:31:52,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:31:52,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:31:52,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:31:52,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:31:52,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:31:52,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:31:52,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:31:52,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:31:52,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:31:52,656 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-25 22:31:52,696 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:31:52,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:31:52,698 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:31:52,698 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:31:52,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:31:52,700 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:31:52,700 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:31:52,700 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:31:52,700 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:31:52,701 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:31:52,702 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:31:52,702 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:31:52,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:31:52,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:31:52,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:31:52,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:31:52,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:31:52,704 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:31:52,705 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 22:31:52,705 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 22:31:52,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:31:52,705 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:31:52,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:31:52,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:31:52,706 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 22:31:52,706 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:31:52,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:31:52,707 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:31:52,707 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:31:52,707 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:31:52,708 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 22:31:52,708 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 22:31:52,708 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:31:52,708 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:31:52,709 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 22:31:52,709 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef848a0bb4e4fe8fcbf3149eed3ae84563dc7162b88d3d2e0e92e77cc1d88695 [2022-11-25 22:31:53,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:31:53,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:31:53,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:31:53,193 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:31:53,193 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:31:53,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.5.prop1-func-interl.c [2022-11-25 22:31:56,320 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:31:56,786 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:31:56,787 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.5.prop1-func-interl.c [2022-11-25 22:31:56,818 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/data/eafbfcab2/14c1434d4a764c4085efaffca0491e0f/FLAGaa31b56f5 [2022-11-25 22:31:56,834 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/data/eafbfcab2/14c1434d4a764c4085efaffca0491e0f [2022-11-25 22:31:56,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:31:56,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:31:56,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:31:56,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:31:56,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:31:56,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:31:56" (1/1) ... [2022-11-25 22:31:56,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74a8ac21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:56, skipping insertion in model container [2022-11-25 22:31:56,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:31:56" (1/1) ... [2022-11-25 22:31:56,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:31:56,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:31:57,189 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.5.prop1-func-interl.c[1014,1027] [2022-11-25 22:31:57,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:31:57,743 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:31:57,753 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.5.prop1-func-interl.c[1014,1027] [2022-11-25 22:31:57,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:31:57,976 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:31:57,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:57 WrapperNode [2022-11-25 22:31:57,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:31:57,979 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:31:57,979 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:31:57,979 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:31:57,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:57" (1/1) ... [2022-11-25 22:31:58,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:57" (1/1) ... [2022-11-25 22:31:58,243 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2558 [2022-11-25 22:31:58,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:31:58,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:31:58,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:31:58,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:31:58,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:57" (1/1) ... [2022-11-25 22:31:58,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:57" (1/1) ... [2022-11-25 22:31:58,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:57" (1/1) ... [2022-11-25 22:31:58,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:57" (1/1) ... [2022-11-25 22:31:58,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:57" (1/1) ... [2022-11-25 22:31:58,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:57" (1/1) ... [2022-11-25 22:31:58,346 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:57" (1/1) ... [2022-11-25 22:31:58,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:57" (1/1) ... [2022-11-25 22:31:58,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:31:58,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:31:58,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:31:58,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:31:58,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:57" (1/1) ... [2022-11-25 22:31:58,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:31:58,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:31:58,461 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:31:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:31:58,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:31:58,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:31:59,223 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:31:59,225 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:32:07,202 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:32:07,211 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:32:07,212 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 22:32:07,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:32:07 BoogieIcfgContainer [2022-11-25 22:32:07,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:32:07,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:32:07,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:32:07,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:32:07,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:31:56" (1/3) ... [2022-11-25 22:32:07,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6795459c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:32:07, skipping insertion in model container [2022-11-25 22:32:07,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:31:57" (2/3) ... [2022-11-25 22:32:07,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6795459c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:32:07, skipping insertion in model container [2022-11-25 22:32:07,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:32:07" (3/3) ... [2022-11-25 22:32:07,228 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.5.prop1-func-interl.c [2022-11-25 22:32:07,249 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:32:07,249 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:32:07,306 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:32:07,312 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@35b44f91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:32:07,312 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:32:07,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:07,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 22:32:07,323 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:07,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 22:32:07,325 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:32:07,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:07,330 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 22:32:07,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:32:07,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141664549] [2022-11-25 22:32:07,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:07,344 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:32:07,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:32:07,351 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:32:07,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 22:32:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:07,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-25 22:32:07,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:32:08,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:08,649 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:32:08,650 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:32:08,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141664549] [2022-11-25 22:32:08,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141664549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:08,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:08,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:32:08,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430339757] [2022-11-25 22:32:08,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:08,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:32:08,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:32:08,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:32:08,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:32:08,739 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:11,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 22:32:11,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:11,450 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2022-11-25 22:32:11,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:32:11,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-25 22:32:11,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:11,459 INFO L225 Difference]: With dead ends: 19 [2022-11-25 22:32:11,459 INFO L226 Difference]: Without dead ends: 10 [2022-11-25 22:32:11,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:32:11,474 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:11,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-11-25 22:32:11,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-25 22:32:11,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2022-11-25 22:32:11,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:11,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-25 22:32:11,509 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-25 22:32:11,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:11,510 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-25 22:32:11,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:32:11,510 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-25 22:32:11,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:32:11,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:11,511 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:11,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:32:11,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:32:11,725 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:32:11,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:11,726 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-25 22:32:11,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:32:11,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795542945] [2022-11-25 22:32:11,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:11,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:32:11,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:32:11,730 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:32:11,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfe2582-9f8b-4cfb-9b59-23be9c60d702/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 22:32:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:16,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 2261 conjuncts, 177 conjunts are in the unsatisfiable core [2022-11-25 22:32:17,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:32:22,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:22,571 INFO L328 TraceCheckSpWp]: Computing backward predicates...